don't go by the battery left settings till you've had a chance to "prove" it. In other words.... on the first discharge battery left will guess how much longer you have and it will even say "accurate" but its not. Not until you actually run your battery down will it learn what the real story is. I recalibrated and right now mine says 5:05 hours left and "accurate" and my mv reading is 3753 and I gurantee you I have "lots more" than 5 hours left! This is my first dicharge since my last recalibrate. Matt prob needs to have it not say Accurate till its really accurate.. cause its not till that first dicharge and even the first "few" discharges are complete. I"ve been running 33 hours so far on this charge "I reboot after charging just to monitor time since boot" I"m sure I will end up with another 20 hours or so instead of the "five" that battery left reports so don't worry yet. Now, if you do a complete discharge once and charge back up and battery left says that then you have issue with with battery left or your battery. While monitoring systems are great, they do have to be calibrated to be trusted... and battery left does not properly calibrate will two or three full discharges.